带嵌件的注塑模具温度场数值模拟

摘要

Cooling analysis ( temperature field calculation ) is one key part of injection molding CAE technology. It plays an important role in optimizing mold design and improving products quality. In this paper, based on BEM theory, presents a numerical model to calculate the temperature field of injection mold embedded with insert. The key problem in model building is how to deal with the boundary condition on the surface between insert and mold. This paper adopts coupling BEM and consequently the boundary condition on the surface between insert and mold is transformed to that on the surface between insert and mold part. It could be calculated analytically rather than numerically.This is useful in improving the accuracy of cooling analysis.%冷却分析(模具温度场计算)是注塑成型计算机辅助工程的关键技术之一,在优化模具设计、提高制品质量方面具有重要作用,本研究提出了采用边界元法建立带嵌件的注塑模具温度场数值模拟的方法,并针对嵌件与模具接触面上的边界条件给定的关键问题,采用耦合边界元法对其转化,将嵌件与模具接触面上的边界条件转移到嵌件与塑件制品的接触面上,使得它的计算可以采用解析法替代原来的差分法,有效提高了分析计算的精度.